Nods news , Time for reflection plus year end report .

Show off and tells us about your car, finished or a work in progress

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Re: Nods news, Well thats a crap design , flappy valve fitt

Post by moose » Thu Oct 27, 2016 8:26 am

rollover valve £3 if cap does not leak i.e. seal good condition then the fuel will only go down the small vent pipe put a one way rollover valve in there problem solved.
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Re: Nods news, Well thats a crap design , flappy valve fitt

Post by The Nun » Thu Oct 27, 2016 9:07 am

moose wrote:rollover valve £3 if cap does not leak i.e. seal good condition then the fuel will only go down the small vent pipe put a one way rollover valve in there problem solved.
The roll over valve I found was 50 quid, where are the 3 quid ones? :)
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Re: Nods news, Well thats a crap design , flappy valve fitt

Post by Dave ' Linwood ' Lane » Thu Oct 27, 2016 11:39 am

moose wrote:why have you just not fitted the rollover valve ?
Just wanted to try this and see if its possible - my other thought was in the event of a front end wack this would prevent any fuel spill even if the main rubber hose split which is highly likely i recon .
I can just imagine a few gallons of fuel hammering out the tank through a split filler hose in the event of it splitting in a crash - consequenses of which could be catastrophic .

This is all just ideas - if anyones got any better ones then do crack on :D
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Re: Nods news, Well thats a crap design , flappy valve fitt

Post by Dave ' Linwood ' Lane » Thu Oct 27, 2016 11:54 am

617sqn wrote:Because that only takes care of the smaller pipework ? Just guessing. This flap will stop it from the tank, so the breather pipe us already covered. Also, using the MX5 valve is less than a tenner, I believe.

Andy G
Valve is less than a tenner ( less than £9 actually ) but I found theres other bits needed to make it fit , £32.70 is the best ive done it for all in - you may well be able to do it cheaper by using other bits or getting them from another source. Im just lazy and went for the easy * get it in a few days * route.
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Re: Nods news, Well thats a crap design , flappy valve fitt

Post by ImpManiac » Thu Oct 27, 2016 12:22 pm

I'm interested too, Dave. Just not for my own Imp. :wink: Mine has an aluminium alloy petrol tank in it anyway and I have done away with the normal Imp petrol filler.

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Re: Nods news, Well thats a crap design , flappy valve fitt

Post by The Nun » Thu Oct 27, 2016 2:45 pm

Definitely worth doing, as you say if it stops fuel pouring out if the hose did split or come off in an accident, then thats good thing.
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Re: Nods news, Well thats a crap design , flappy valve fitt

Post by 617sqn » Thu Oct 27, 2016 4:43 pm

I'd also be interested in a £3 rollover valve ! Those I saw were much, much dearer :?

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Re: Nods news, Well thats a crap design , flappy valve fitt

Post by moose » Thu Oct 27, 2016 4:45 pm

Regards Moose
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Re: Nods news, Well thats a crap design , flappy valve fitt

Post by 617sqn » Thu Oct 27, 2016 4:58 pm

Well..... what can I say ? I'd buy one of those to put in the breather hose at least until the full modification :D

Well spotted. Less sophisticated than the expensive ones, you'd think but, hey sometimes simple is perfectly adequate. Like me :lol:

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Re: Nods news, Well thats a crap design , flappy valve fitt

Post by Dave ' Linwood ' Lane » Thu Oct 27, 2016 5:49 pm

AW hell you might as well know what i used and make your own minds up . If it goes wrong dont blame me as very much like the car itself its not fully tested as yet :lol: :lol:
Valve is for a MK2 / 2.5 Mazda MX5 - part number GE4T- 42 - 270B , Available from Mazda or i got mine from here
http://www.mx5parts.co.uk/fuel-filler-r ... -2643.html
You also need the filler pipe as this holds the valve .
I got mine from ebay - seller has a fair few so it was easy to get although the postage is steep it arrived very quickly . A suitable one in a scrapyard might well be cheaper though.
http://www.ebay.co.uk/itm/MAZDA-MX5-EUN ... XQIrFSKLtn
You also need a rubber adaptor , try as i might i couldnt find the exact size to fit our tank so went with this one , part number HRED50.
https://www.carbuildersolutions.com/uk/ ... id-reducer
The problem with not finding the correct outer diameter meant the necessity to make an adaptor to the following size. inner diameter was made slightly smaller than the 50mm rubber adaptor so its a tight fit , Rubber adaptor is fuel / oil / whatever resistant or so it says anyway :)
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Last edited by Dave ' Linwood ' Lane on Thu Jun 07, 2018 3:50 pm, edited 4 times in total.
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Re: Nods news, Well thats a crap design , flappy valve fitt

Post by Dave ' Linwood ' Lane » Thu Oct 27, 2016 5:57 pm

The how to part .
Cut the Mazda fuel pipe end off keeping BOTH raised parts - this is very important as one end holds the valve and the other stops the lot falling into the tank .
Fit the new valve in the bit of remaining pipe on the side you didnt cut - the very end .
slide the rubber adaptor plain end first part way over the non valve end then add the metal adaptor from the valve side shoulder end first , by sliding the rubber part over the pipe and through the adaptor come the end the three will effectively lock together like so.
the shoulder left on the pipe where you cut it plus the metal adaptor prevents it falling into the tank .
once your at this stage its just a case of removing the fuel filler pipe off the car and tapping the adaptor into the tank.
Yuo might need to fine tune the outer size to suit your tank but i made mine a hard push in fit so its easy to get back out with a suitable screwdriver.
I wouldnt beat it in with a large hammer :lol: .
Thats it , filling up is slightly slower as it does add a bit of restriction but i think the safety aspect is worth it,
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Re: Nods news, Flappy tank valve - what i did and used

Post by Dave ' Linwood ' Lane » Thu Oct 27, 2016 6:30 pm

One other thing worth mentioning - theres two types of valve - a single flap early one which was replaced by Mazda as it caused issues and the later three flap one thats OK .
Id use the later - differences in the following pics
Attachments
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The early one flap flappy valve - bin this one
IMG_7793.JPG
Later three flap type - use this one
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Re: Nods news, Flappy tank valve - what i did and used

Post by ImpManiac » Thu Oct 27, 2016 8:01 pm

Thank you for sharing this, Dave. :)

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Re: Nods news, Flappy tank valve - what i did and used

Post by The Nun » Thu Oct 27, 2016 8:33 pm

A very good Nod mod :wink:
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Re: Nods news, Flappy tank valve - what i did and used

Post by Dave ' Linwood ' Lane » Thu Oct 27, 2016 9:20 pm

The Nun wrote:A very good Nod mod :wink:
Cheers - il do the Vusky the same way at some point - somehow the Singer feels safer knowing the fuel aint getting out the tank unless i drive it or take it out myself
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Re: Nods news, Flappy tank valve - what i did and used

Post by The Nun » Fri Oct 28, 2016 9:00 am

I will do the same now seeing as youve posted a comprehensive how too already, as you say it will make the car feel safer, as will my new 12 fuse system also, at least I know theres going to be a lot less chance of it blowing up or catching fire. :wink:
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Re: Nods news, Flappy tank valve - what i did and used

Post by Dave ' Linwood ' Lane » Fri Oct 28, 2016 4:25 pm

Not that I thought it would for a moment but just to confirm that I noticed zero difference on a 50 mile drive out today in the Singer.
So the flappy flap valve makes no difference whilst driving about :D
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Re: Nods news, Flappy tank valve - what i did and used

Post by Dave ' Linwood ' Lane » Sat Oct 29, 2016 11:55 am

Stuck a tenners worth of fuel in today - as long as you dont ram the pump nozzle fully in and only squeeze the trigger about half way it fills up fine without stopping. I dont think theres a cure for this small issue - apart from taking it out of course :roll:
I can live with this given the new safety aspect and the lack of petrol fumes when braking hard.
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Re: Nods news, Flappy tank valve - what i did and used

Post by Lars Hagermark » Sat Oct 29, 2016 12:05 pm

Looks like I'll have to add a note to my to-do-list. :)
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Re: Nods news, Vapour return pipe.

Post by Dave ' Linwood ' Lane » Sat Oct 29, 2016 3:06 pm

Changed the fuel tank vapour pipe today - tother was hard plastic and split at one end - pipe diameter is 9.5mm which just happens to be the same as some fuel injection pipe so i did both cars .
Also found the proper clips to hold the fuel tank vent pipe to the front panel so popped them on whilst i was at it ( part number 9178571 ) . :)
Used a bit of this injection hose to replace the mushy rotten dipstick tube holder thingy on the Vusky as well .
three jobs jobbed - one bit of pipe
Attachments
14725685_10211066261592111_4894459968695586670_n.jpg
New tank vapour return pipe - note the factory genuine 1960s zip ties that dont zip - part numbers 9233827 ( strap ) and 9228009 ( peg )
I think you just bought a length of it and a peg for each strap you required -
14639883_10211066261912119_4671512595984067425_n.jpg
Factory clips to hold the vent pipe to the front panel part number 9178571
14906943_10211066263152150_8154356777557468134_n.jpg
newness bit is in there somewhere
14717060_10211066263272153_7532285003027290154_n.jpg
rotten dipstick link pipe thingy
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Re: Nods news,

Post by Dave ' Linwood ' Lane » Sun Nov 06, 2016 5:59 pm

New inner and outer throttle cable fitted to the Singer - as its really bike brake cable outer ( Shimano BC-9000 ) and slimmer externally than factory ones a bit of modding was required to make it clip into the floor clips - just some 1 inch lengths of washer bottle pipe was all that was needed - new stainless inner cable combined with this silicon greased outer has given me the smoothest throttle ive ever known :) :)
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14980687_10211153290927790_8361830583020036328_n.jpg
14907632_10211153290527780_7964755061882366095_n.jpg
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Re: Nods news, new throttle cable - from a bicycle !!

Post by Lars Hagermark » Mon Nov 07, 2016 8:19 pm

This is the first - and I'm sure the only - time I can say: I did that long ago. :)
Think it was three (or more?) years ago when I first fitted the 998 to the Californian.
(Most other mods/improvements are inspired - or shamelessly copied - from Nods news/natterings.) :oops:
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Re: Nods news, new throttle cable - from a bicycle !!

Post by Dave ' Linwood ' Lane » Mon Nov 07, 2016 8:50 pm

Lars Hagermark wrote:This is the first - and I'm sure the only - time I can say: I did that long ago. :)
Think it was three (or more?) years ago when I first fitted the 998 to the Californian.
(Most other mods/improvements are inspired - or shamelessly copied - from Nods news/natterings.) :oops:
Seems i copied you this time :lol:
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Re: Nods news, new throttle cable - from a bicycle !!

Post by Dave ' Linwood ' Lane » Wed Nov 09, 2016 7:18 pm

Ive been experimenting again - this time with a third throttle spring .
Main reason is to take some of the stress and therefor wear on the throttle spindles .
SU throttles have no built in spring and rely on the two external ones - to get any kind of " feel " they are usually quite taut .
However theres almost zero tension needed to shut them properly .
So as a trial ive reduced the tension on the two spindle springs using a couple of key ring rings ( temporary trial ) and added a third spring on the cable control - all three are only just on tension at rest,
The result is more or less the same pedal feel as before but a lot less stress on the throttle spindles. As with Strombergs and 28/36 Webers spindle wear can be an issue so anything that can reduce this would be good .
Not driven it yet but its looking promising - a drive out will tell me at the weekend .
Attachments
15036328_10211182936428909_8796248441227768355_n.jpg
third spring just visible and two spring reduction adaptors - also known as key rings LOL
15036599_10211182936628914_1931648160054712896_n.jpg
As it was before , the third spring in this is for the choke although its not really needed il refit it once i know this works
You can see the spindle springs are a lot more stretched in this
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Re: Nods news, Experimenting again

Post by bazzateer » Thu Nov 10, 2016 12:33 pm

Aha! Always ran mine with 3 springs :D
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Re: Nods news, Flappy tank valve - what i did and used

Post by imp.sport » Thu Nov 10, 2016 1:39 pm

Dave ' Linwood ' Lane wrote:One other thing worth mentioning - theres two types of valve - a single flap early one which was replaced by Mazda as it caused issues and the later three flap one thats OK .
Id use the later - differences in the following pics
I saw on a YouTube video that the early type valve suffered from filling problems. It seems it's down to an overtight clamp that secures the rubber hose on the filler neck. The guy in the video just took a file to the flap to cure it.
I doubt where it's located in the Imps tank and adapted to fit the same problem would occur.
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Re: Nods news, Flappy tank valve - what i did and used

Post by Dave ' Linwood ' Lane » Thu Nov 10, 2016 4:48 pm

imp.sport wrote:
Dave ' Linwood ' Lane wrote:One other thing worth mentioning - theres two types of valve - a single flap early one which was replaced by Mazda as it caused issues and the later three flap one thats OK .
Id use the later - differences in the following pics
I saw on a YouTube video that the early type valve suffered from filling problems. It seems it's down to an overtight clamp that secures the rubber hose on the filler neck. The guy in the video just took a file to the flap to cure it.
I doubt where it's located in the Imps tank and adapted to fit the same problem would occur.
Cheers for this , both my pipes came with the single flap ones which ive kept just in case - just as well really :)
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Re: Nods news, Experimenting again

Post by Dave ' Linwood ' Lane » Thu Nov 10, 2016 4:49 pm

Just been out in the Vusky to see what the triple spring set up feels like - slightly lighter when pulling away which is nice and the same as before when crusing - a sort of variable pressure throttle .
LOVELY :D :D
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Re: Nods news, Experimenting again

Post by The Nun » Thu Nov 10, 2016 5:10 pm

Dave ' Linwood ' Lane wrote:Just been out in the Vusky to see what the triple spring set up feels like - slightly lighter when pulling away which is nice and the same as before when crusing - a sort of variable pressure throttle .
LOVELY :D :D
Sort of like if theyd ever fitted a pneumatic throttle system to the IMP? :wink:
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Re: Nods news, Experimenting again

Post by 617sqn » Thu Nov 10, 2016 6:47 pm

Such a cynic :lol:

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Re: Nods news, Experimenting again

Post by Dave ' Linwood ' Lane » Thu Nov 10, 2016 7:58 pm

Im going to do the Singer the same way this weekend - whats good for one is good for tother :)
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Re: Nods news, Experimenting again

Post by Dave ' Linwood ' Lane » Fri Nov 11, 2016 7:14 pm

Just finished doing the triple throttle return spring mod on the Singer.
I initially tried it on the Vusky with great success so had to have a go on tother one.
Combined with the Shimano outer cable and stainless inner the pedal feels absolutely superb - having just been for a hoon the pedal feels light but not too light and very responsive.
I recon once i get a decent pedal fitted it will be the best its ever been and If i can find a way to bush the pedal pivots rather than the crappy original design it will be even better ( an idea im mulling over ) . :)
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Re: Nods news, Experimenting again

Post by Dave ' Linwood ' Lane » Tue Nov 15, 2016 8:04 pm

Imp throttle pedal modding / butchery / possibly / probably fecking up has begun .
The original pedal pivot idea is shite beyond believe and this ones royally borked .
Ive found some perfect fitting top hat oilite bushes the correct size internally and externally and have worked out a way to mount them - cable end is easy but the spring end less so .
As its all a bit trial and error ive threaded the pedal so it will come apart as i develop the idea - final one will most likely be welded although bush change will be a no go in both cases at the pedal end without welding one way or other ( maybe ) , threaded like this you could at least change the cable end one plus alter the pedal angle although i can see no advantage with that.
Its all in the development stage at this point anyway and nothings finalised . :)
Attachments
15036614_10211246679662450_1982681850251404796_n.jpg
spring end is royally borked
15095498_10211246678502421_3541828271681044108_n.jpg
Bush plus cable end wear groove
15056436_10211246680382468_7570442754540508897_n.jpg
Threaded for ease of taking apart - probably wont make it to ones i fit on the cars
15078655_10211246680462470_2759145839970854341_n.jpg
Whoever thought this was good as a pivot wants shooting
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Re: Nods news, Experimenting again - throttle pedal pivots

Post by Lars Hagermark » Tue Nov 15, 2016 8:47 pm

I agree it's a bad design from start and yours is a much better one.
However, I don't think anyone at Rootes ever imagined that their "low end" car would be alive some 50+ years after its' introduction.
Then again - if someone actually thought so - I'm sure that bean counting engineers (Chrysler people?) would have changed the design to what it is.
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Re: Nods news, Experimenting again - throttle pedal pivots

Post by Dave ' Linwood ' Lane » Tue Nov 15, 2016 8:54 pm

Lars Hagermark wrote:and yours is a much better one.
Dont count your chickens - its not working yet :lol:
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Re: Nods news, Experimenting again - throttle pedal pivots

Post by bks974c » Tue Nov 15, 2016 8:54 pm

Also this was not the original design but a bodge to address the issues with the pneumatic throttle. perhaps they had a limited time to design and get them into production and then never had any reason to revisit.

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Re: Nods news, Experimenting again - throttle pedal pivots

Post by Dave ' Linwood ' Lane » Tue Nov 15, 2016 8:57 pm

bks974c wrote:Also this was not the original design but a bodge to address the issues with the pneumatic throttle. perhaps they had a limited time to design and get them into production and then never had any reason to revisit.

Scott
Very true - forgot that bit re. the drive by air throttle . cable pedal always looked a cobbled together " that will do " job to me :D
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Re: Nods news, Experimenting again - throttle pedal pivots

Post by Lars Hagermark » Tue Nov 15, 2016 9:04 pm

Dave ' Linwood ' Lane wrote:
Lars Hagermark wrote:and yours is a much better one.
Dont count your chickens - its not working yet :lol:
OK, I'll rephrase my statement: "... yours appears to be a much better one." :wink:
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Re: Nods news, Experimenting again - throttle pedal pivots

Post by AnonymousUser » Tue Nov 15, 2016 9:33 pm

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Re: Nods news, Experimenting again - throttle pedal pivots

Post by Dave ' Linwood ' Lane » Tue Nov 15, 2016 10:11 pm

John Ross wrote:Dave

Could you not get a roller bearing same diameter inside as the throttle linkage shaft itself, use a couple of washers/split pins to retain, enlarge the holes in the mount brakets and weld on a omega shapes pinch clip to hold the bearings ??

Just a thought, would make a real sweet movement and last a little longer than the oilites.

John
bearings are the other idea - havent got to grips exactly how as yet - oilites were at work and 50 pence each so worth a punt , il check the bearing catalogues at some point and see whats available
Formally known as " Noddy "
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